What are the solutions to the equation -3x^2=21 ?

The solutions to the equation -3x^2=21 are x=sqrt(7)i,x=-sqrt(7)i

Find the zeros of -3x^2=21

The zeros of -3x^2=21 are x=sqrt(7)i,x=-sqrt(7)i

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- 3 x^{2} = 21

x = 7 i, x = - 7 i

Solution steps

- 3 x^{2} = 21

Divide both sides by

- 3

x^{2} = - 7

For

x^{2} = f (a)

the solutions are

x = f (a), - f (a)

x = - 7, x = - - 7

- 7 = 7 i

- - 7 = - 7 i

x = 7 i, x = - 7 i

4 x^{2} + 12 x = - 5

x^{2} - 11 x = - 30

4 x^{2} + 1.2 x = 0

x^{2} + 15 x + 50

12 x^{2} + 12 x + 9 = 0

What are the solutions to the equation -3x^2=21 ?
The solutions to the equation -3x^2=21 are x=sqrt(7)i,x=-sqrt(7)i
Find the zeros of -3x^2=21
The zeros of -3x^2=21 are x=sqrt(7)i,x=-sqrt(7)i